Closed Bug 641652 Opened 13 years ago Closed 13 years ago

Object.defineProperty throws an Error not a TypeError

Categories

(Core :: JavaScript Engine, defect)

Product:
Core
Component:
JavaScript Engine
Platform:
x86
Linux
Type:
defect
Priority:
Not set
Severity:
normal

Tracking

()

Status:
RESOLVED DUPLICATE of bug 598996

People

(Reporter: bruant.d, Unassigned)

Details

User-Agent:       Mozilla/5.0 (X11; Linux i686; rv:2.0) Gecko/20100101 Firefox/4.0
Build Identifier: FF4RC1

Test case:
-------------------
(function testcase() {
    var arrObj = [];
    try {
        Object.defineProperty(arrObj, "length", {configurable: true});
        return false;
    } catch (e) {
        alert(e instanceof Error);
        return e instanceof TypeError;
    }
})();
-------------------
When there is an Object.defineProperty error due to unconfigurable properties, a TypeError should be thrown, not an Error.
In the WebConsole and Bugzilla 1.7X.0b1, the Error is an InternalError apparently.


Reproducible: Always
Noticed when reviewing Test262 Test 15.2.3.6-4-120
(a bunch of other tests fail for the same reason)
Status: UNCONFIRMED → RESOLVED
Closed: 13 years ago
Resolution: --- → DUPLICATE
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